Respuesta :

One mile is 5280 feet, so when you add 900 to that, it ends up being 6180 feet, so 6200 feet is greater.

We should convert either of them to have the same unit to compare.

1 mile = 5280 feet 

Add 1 mile (in feet) to 900 feet.
5280 + 900 = 6180 feet

6200 feet > 6180 feet

6200 feet is greater